Automatic control apparatus



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PULSE ABSENT PULSE PRESENT 29 Sheets-Sheet 3 sET Ac NoRNAl. sTATE Fon om-:RATIQN FIG .4F FIG .4B wlTH TRlGGER |N|=uTs|- E H A a (A+ B) (A+B) EEgTS'TgQ'EC SET o No CHANGE o o o ELEcTRoNlc sET 0 I 0 I 0 T0 I STATE- o l o o HoLos BoTH ouTPuTs AT l 0 l l 0 o LEvELsI 4 A C=D *D c D f sET TRlscER REsET TRleGER DIFQRESET STEERING E ELECTRONIC SET G ouTPuT STEERING ELEcTRoNlc H REsET ouTPuT FIG.4C

INVENTOR. JOHN T. EVANS ATTORNEY March 9, 1965 J. T. EVANS 3,173,001

AUTOMATIC CONTROL APPARATUS Filed Sept. 5. 1961 29 Sheets-Sheet 4 I NPUTS OUTPUTS C D A G PULSE MAY BE MAY BE PRESENT ETHER OR ABSENT 0 0R| I 0 0 i Y IU m O O 2 g O O o o E LU o o O O I O O o o 5 IJJ O O g 0 O t): 5 o o L o o E 'i Ik' 0 a as n. o o L C D SET TRIGGER RESET TRIGGER A B SET STEERING I l-- RESET STEERING E F ELECTRONIC SET ELECTRONIC RESET OUTPUT OUTPUT INVENTOR.

JOHN T. EVANS ATTORNEY March 9, 1965 J. T. EVANS AuToMATIc coN'rRoL APPARATUS 29 Sheets-Sheet 5 Filed Sept. 5, 1961 m .GE

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AUTOMATIC coNTRoL APPARATUS Filed sept. 5, 1961 s sheets-smet 'r TRANSFER RESET FIG.5C 226 INVENTOR.

JOHN T. EVANS A TORNEY March 9, 1965 .1.1'. EVANS 3,173,001.

AUTOMATIC CONTROL APPARATUS Filed Sept. 5, 1961 29 Sheets-Sheet 8 l0 2O 40 80 [230 l 2 4 8 229 snsncncn HGHGHGH GHGHGHGH IO 2O 40 80 GHG HGHGH F l G .5D

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AUTOMATIC CQNTROL APPARATUS Filed Sept. 5. 1961 29 Sheets-Sheet NEXT DECADE CQ' (D N 'n sa a E 520s E INVENTOR, mimo JOHN T. EVANS ATTORNEY J. T. EVANS AUTOMATIC CONTROL APPARATUS LMarch 9, 1965 29 Sheets-Sheet. 10

Filed Sept. 5, 1961 ATToR N EY March 9, 1965 .1.1. EVANS AuToMA'rrc coNTRoL APPARATUS 29 Sheets-Sheet. 11

Filed Sept. 5, 1961 ATTORNEY March 9, 1965 J. T. EVANS 3,173,001

AUTOMATIC CONTROL APPARATUS A Filed Sept. 5, 1961 -Y 29 Sheets-Sheet. l2

PULSE RATE MULTIPLIER PATTERNS 8A.

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AUTOMATIC CONTROL APPARATUS Filed sept. 5. 1961 29 sneets-sheet- 1s PULSE RATE MULTIPLIER PATTERNS F|G.8B.

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AUTOMATIC CONTROL APPARATus/ Filed Sept. 5, 1961 29 Sheets-Sheet 14 ATTORN EY March 9, 1965 .1.1. EVANS 3,173,001

AUTOMATIC CONTROL APPARATUS TTORNEY March 9, 1965 J. T. EVANS 3,173,001

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Filed sept. 5. 1961 INVENTOR.

JOH N T. EVANS JMJ/72041: ATTORNEY March 9, 1965 .1.1. EVANS 3,173,001

AUTOMATIC CONTROL APPARATUS Filed Sept. 5. 1961 29 Sheets-Sheet. 18

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JOHN T. EVANS My/@gi ATTORNEY March 9, 1965 J. T. EVANS AUTOMATIC CONTROL APPARATUS 29 Sheets-Sheet. 19

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4 5m. 29 w I o r w r w wN-l vm. d WH 2m. m o u m n u m Q u m o u En. IY f VL ILE 2m. 2m. $.51 vo March 9, 1965 J. T. EVANS AUTOMATIC CONTROL APPARATUS 29 Sheets-Sheet 2O Filed sept. 5, 1961 Om Om INVENTOR. JOHN T. EVANS AORNEY 

1. A PHASE COMPARISON MEANS: A REVERSIBLE COUNTER HAVING TWO INPUT LEADS AND NORMALLY REGISTERING A REFERENCE NUMBER WHICH MAY BE VARIED BY ONE UNIT IN A FIRST ARITHMETIC SENSE FOR EACH PULSE APPLIED TO ONE OF SAID TWO INPUT LEADS AND BY ONE UNIT IN A DIFFERENT ARITHMETIC SENSE FROM SAID FIRST SENSE FOR EACH PULSE APPLIED TO THE OTHER ONE OF SAID TWO INPUT LEADS; DIGITAL TO ANALOG CONVERSION MEANS RESPONSIVE TO THE OUTPUT OF SAID COUNTER FOR GENERATING AN ANALOG SIGNAL OF MANGNITUDE COMMENSURATE WITH THE NUMBER OF UNITS DIFFERENCE BETWEEN SAID REFERENCE NUNBER AND THE ACTUAL NUMBER REGISTERED IN SAID COUNTER OVER AT LEAST A PORTION OF THE RANGE OF OPERATION OF SAID COUNTER; AND INPUT LOGIC MEANS COUPLED TO SAID TWO INPUT LEADS OF SAID COUNTER AND TO SAID CONVERSION MEANS FOR PRECLUDING THE SIMULTANEOUS APPLICATION OF PULSES ON SAID TWO COUNTER INPUT LEADS AND FOR DEFINING BY VIRTUE FO ITS LOGIC STATE, DURING A PORTION F ITS OPERATION, TO WHICH OF SAID INPUTS OF SAID COUNTER A PULSE WAS LAST APPLIED. 